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Numerous genes that regulate the activity of a neurotransmitter in the brain have been found to be abundant in brain tissue of depressed females, according to research at the University of Illinois at Chicago.

Astronomers from the University of Geneva (UNIGE) and members of the NCCR PlanetS have teased out a secret planetary system hiding in the arms of Cassiopea, just 21 light years away from us. The remarkable system, named HD219134, hosts one outer giant planet and three inner super-Earths, one of which transits in front of the star. The transiting super-Earth has a density similar to the Earth’s.

Astronomers using NASA's Hubble Space Telescope and the W. M. Keck Observatory in Hawaii have confirmed the existence of a Uranus-sized exoplanet orbiting far from its central star, discovered through a technique called gravitational microlensing. These results appear in two papers in The Astrophysical Journal.

Health experts have warned for years that the overuse of antibiotics is creating “superbugs” able to resist drugs treating infection. Now scientists at Indiana University and elsewhere are finding evidence that an invisible war between microorganisms may also be catching humans in the crossfire.

Older Americans receive prescriptions for mental health drugs at more than twice the rate that younger adults do, but they’re much less likely to be getting their mental health care from a psychiatrist, a new study shows. Some seniors could be at risk of problems caused interactions between drugs.

NASA has awarded grants to a University of Arkansas-affiliated technology firm to design complex integrated circuits that can operate on the surface of Venus, where the temperature can reach 500 degrees Celsius.